CRay3 VoronoiDiagram::getRayBoundedToArena(const CRay3 &ray) const {
Real startX, startY, endX, endY;
bool edgeWasClipped = LiangBarsky(
arenaLimits.GetMin().GetX(),
arenaLimits.GetMax().GetX(),
arenaLimits.GetMin().GetY(),
arenaLimits.GetMax().GetY(),
ray.GetStart().GetX(), ray.GetStart().GetY(),
ray.GetEnd().GetX(), ray.GetEnd().GetY(),
startX, startY, endX, endY);
if (!edgeWasClipped)
throw EdgeNotInArea();
CRay3 boundedRay(CVector3(startX, startY, diagramLiftOnZ),
CVector3(endX, endY, diagramLiftOnZ));\
return boundedRay;
}
void CQTOpenGLUserFunctions::DrawRay(const CRay3& c_ray,
const CColor& c_color,
Real f_width) {
/* Save attributes and current matrix */
glPushAttrib(GL_LINE_BIT);
/* Set line attributes */
glEnable(GL_LINE_SMOOTH);
glLineWidth(f_width);
/* Set color */
SetColor(c_color);
/* Draw ray */
glBegin(GL_LINES);
glVertex3f(c_ray.GetStart().GetX(), c_ray.GetStart().GetY(), c_ray.GetStart().GetZ());
glVertex3f(c_ray.GetEnd().GetX(), c_ray.GetEnd().GetY(), c_ray.GetEnd().GetZ());
glEnd();
/* Restore saved stuff */
glPopAttrib();
}
